Lunch box



FIG. 1 is a perspective view of a lunch box showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is an enlarged view of the encircled area 8 of FIG. 3 ; and,

FIG. 9 is an enlarged view of the encircled area of FIG. 3 .

The dot-dash line in FIGS. 3, 8, and 9 which define the bounds of the claimed design form no part thereof. The broken line rectangular boxes identifying the enlarged views shown in FIGS. 3, 8, and 9 form no part of the claimed design. The remaining broken lines shown in the figures depict portions of the lunch box that form no part of the claimed design. 

CLAIM The ornamental design for a lunch box, as shown and described. 